Results 61 to 70 of about 630 (239)
Homodyne Estimation of Gaussian Quantum Discord [PDF]
Physical Review Letters, 2012 We address the experimental estimation of Gaussian quantum discord for two-mode squeezed thermal state, and demonstrate a measurement scheme based on a pair of homodyne detectors assisted by Bayesian analysis which provides nearly optimal estimation for small value of discord.
R. Blandino +6 more
openaire +7 more sources
Circulant States with Vanishing Quantum Discord [PDF]
Open Systems & Information Dynamics, 2012 We analyze a class of 2-qudit circulant states. They define a generalization of well-known 2-qubit X-states. We formulate necessary and sufficient criteria for vanishing of quantum discord. We illustrate our analysis by an important subclass of circulant states — the so-called Bell diagonal states.
Bogna Bylicka, Dariusz Chruscinski
openaire +4 more sources
Exact dynamics of quantum correlations of two qubits coupled to bosonic baths
New Journal of Physics, 2013 Dynamics of the quantum entanglement and quantum discord of two qubits in two independent baths and a common bath with the Lorentzian spectrum are studied exactly in the numerical sense within the hierarchy approach.
Chen Wang, Qing-Hu Chen
doaj +1 more source
Advanced Materials, EarlyView.Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu +3 more
wiley +1 more source
Correlations in Two-Qubit Systems under Non-Dissipative Decoherence
Axioms, 2020 We built a new set of suitable measures of correlations for bipartite quantum states based upon a recently introduced theoretical framework [Bussandri et al. in Quantum Inf. Proc. 18:57, 2019].
Diego G. Bussandri +3 more
doaj +1 more source
Quantum discord in quantum computation
Journal of Physics: Conference Series, 2011 Prepared for publication in the Proceedings of DICE2010. Section 4 contains previously unpublished results on process tomography.
Brodutch, Aharon +3 more
openaire +2 more sources
Flexoelectrically Induced Polar Topology in Twisted SrTiO3 Membranes
Advanced Materials, EarlyView.Twisted SrTiO3 bilayers host polar vortices of flexoelectric origin, revealed through combined experiment and theory. By reconstructing polarization from the toroidal moment of strain gradients, the work establishes a 3D chiral state with broken inversion and mirror symmetries.
Isabel Tenreiro +13 more
wiley +1 more source
Quantum correlations in optomechanical system in the presence of optical feedback
Physics Open, 2022 In this paper, we investigate the dynamics of quantum correlations for the continuous-variable bipartite optomechanical system in the presence of homodyne mediated quantum feedback.
Sitotaw Eshete
doaj +1 more source
Why Is the Mechanism Underlying the Chiral‐Induced Selectivity Effect Still Challenging?
Advanced Materials, EarlyView.The chiral‐induced spin selectivity (CISS) effect is observed in many experimental configurations and for different materials. However, there are theoretical challenges in attempting to explain those results. A qualitative framework for explaining all the results is presented.
Ron Naaman, Yossi Paltiel
wiley +1 more source
Unbiased Structure Prediction of Sophisticated Cage Structures
Angewandte Chemie, EarlyView.We introduce the software and workflow for automated, unbiased exploration of all possible connectivities of a given set of building blocks and their stoichiometry to predict stable cage structures. ABSTRACT Cage structure prediction has made significant strides by generating structures based on what the community has seen before.
Andrew Tarzia, Giovanni M. Pavan
wiley +2 more sources